<template>
    <div>
        <div id="slider" class="mui-slider">
            <!-- 滚动导航栏 -->
            <div id="sliderSegmentedControl"
                 class="mui-scroll-wrapper mui-slider-indicator mui-segmented-control mui-segmented-control-inverted">
                <div class="mui-scroll">
                    <a :class="['mui-control-item', item.id == 0 ? 'mui-active' : '']" v-for="item in cates"
                       :key="item.id" @click='getphoto(item.id)'>
                        {{item.title}}
                    </a>
                </div>
            </div>
        </div>
        <!-- 图片区域 -->
        <ul class="photo-list">
            <router-link v-for="item in list" :key="item.id" :to="'/home/photoInfo/'+item.id" tag="li">
                <img v-lazy="item.img_url">
                <div class="info">
                    <div class="info-title">{{ item.title }}</div>
                    <div class="info-body"> {{ item.zhaiyao }}</div>
                </div>
            </router-link>
        </ul>
    </div>
</template>


<script>
    import mui from '../../lib/mui/js/mui.js';
    import {Toast} from "mint-ui";

    export default {
        data() {
            return {
                cates: [], //导航列表数组
                list: []   //图片数组
            }
        },
        created() {
            this.getAllCategory();
            //默认请求全部图片
            this.getphoto(0);
        },
        mounted() {
            mui('.mui-scroll-wrapper').scroll({
                deceleration: 0.0005 //flick 减速系数，系数越大，滚动速度越慢，滚动距离越小，默认值0.0006
            });
        },
        methods: {
            getAllCategory() {
                this.$http.get("api/getimgcategory").then(result => {
                    if (result.body.status === 0) {
                        result.body.message.unshift({title: "全部", id: 0});
                        this.cates = result.body.message;
                    } else {
                        Toast("导航栏获取失败。。。");
                    }
                })
            },
            getphoto(id) {
                this.$http.get("api/getimages/" + id).then(result => {
                    this.list = result.body.message;
                })
            }
        }
    }
</script>


<style lang='scss' scoped>
    img[lazy=loading] {
        width: 40px;
        height: 300px;
        margin: auto;
    }

    .photo-list {
        list-style: none;
        margin: 0;
        padding: 10px;
        padding-bottom: 0;
        li {
            background-color: #ccc;
            margin-bottom: 10px;
            box-shadow: 0 0 9px #999;
            position: relative;
            img {
                width: 100%;
                vertical-align: middle;
            }
        }
    }

    .info {
        color: white;
        text-align: left;
        position: absolute;
        bottom: 0;
        background-color: rgba(0, 0, 0, 0.4);
        max-height: 84px;
        .info-title {
            font-size: 14px;
        }
        .info-body {
            font-size: 13px;
        }
    }
</style>